Integrated Hinge Checkarm Locking Mechanism

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Solution Overview

Problem

Current hinge systems with checkarms in vehicles require separate housings and materials for hinges and checkarms, leading to increased assembly time and cost due to independent positioning and dual material usage.

Innovation Solution

A hinge with a checkarm design that integrates both functions, featuring a fixed and movable body connected by a joint, a press arm with a spring, and a checkarm with an adjustment slot and lock mechanism, allowing for adjustable door positioning and reduced assembly complexity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If separate housings and materials are used for hinges and checkarms, then the functions of hinge and checkarm are provided independently, but the assembly time and cost increase

Engineering Contradiction:
Improvefunctional reliabilityVSAvoidassembly time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent merges the hinge and checkarm into a single integrated component structure. The checkarm is positioned within the hinge housing and connected through a joint, eliminating the need for separate housings and reducing assembly steps while maintaining both hinge and checkarm functions independently

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If separate housings and materials are used for hinges and checkarms, then the functions of hinge and checkarm are provided independently, but the manufacturing cost increases

Engineering Contradiction:
Improvefunctional reliabilityVSAvoidmanufacturing cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent merges the hinge and checkarm into a single integrated component structure. The checkarm is positioned within the hinge housing and connected through a joint, eliminating the need for separate housings and reducing assembly steps while maintaining both hinge and checkarm functions independently

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated hinge-checkarm structure serves multiple functions simultaneously: the hinge provides rotational movement for the door, while the checkarm provides positioning at predetermined angles. This multi-functionality reduces the need for separate components and reduces overall manufacturing cost

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If two different materials are used for hinge and checkarm, then the specific functions of each component are optimized, but the number of pieces and assembly complexity increase

Engineering Contradiction:
Improvefunctional adaptabilityVSAvoidassembly complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges the hinge and checkarm into a single integrated component structure. The checkarm is positioned within the hinge housing and connected through a joint, eliminating the need for separate housings and reducing assembly steps while maintaining both hinge and checkarm functions independently

Inventive Principle:
Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This integrated design reduces assembly time and cost by eliminating the need for separate housings and materials, while ensuring the door is fixed at a predetermined angle, allowing for efficient and cost-effective assembly and operation.

Implementation Method 1

at least one press spring disposed onto said joint and connected to the same of the fixed body and movable body as the press arm from one end and connected to the press arm from the other end in order to press the press arm towards the other of the fixed body or the movable body

Methodology Applied
Scientific EffectSpring force: Spring

Data Source

PatentEP2639389B1Hinge with a checkarm
Publication Date: 2018.05.16 ROLLMECH AUTOMOTIVE SANAYI VE TICARET ANONIM SIRKETI
  • EP2639389B1 patent drawingFigure 1
  • EP2639389B1 patent drawingFigure 2
  • EP2639389B1 patent drawingFigure 3

AI summary

The subject matter invention relates to a hinge (1) with a checkarm having at least one fixed body (10) and at least one movable body (20) connected to each other by means of at least one joint (15) in order to connect a door (60) onto a vehicle body (50) in a rotatable manner, characterized in that, in order to limit opening extent of the door (60) to a predetermined angle with respect to the vehicle body (50) when intended, the present invention comprises a checkarm (30) connected to any of the fixed and movable bodies (10, 20) from one side by means of a joint (42) in a rotatable manner and on the other side thereof, having at least one lock member (32) retained by a gripping member (14) when the door is opened at said angle, where said gripping member (24) is assembled to the vehicle body or to any of the fixed and movable bodies (10, 20).